Explore: Ammonoidea

extinct, (typically) coiled-shelled cephalopods comprising the subclass Ammonoidea. They are more closely related to living octopuses, squid, and cuttlefish

primarily orthoconic orders (including the ancestors for Bacritida and Ammonoidea); and Nautilitoidea, which includes the first coiled cephalopods, Tarphycerida

the Anarcestida, is the ancestral order within the cephalopod subclass Ammonoidea originating from bactritoid nautiloids, that lived in what would become

cephalopods have been identified. Two important extinct taxa are the Ammonoidea (ammonites) and Belemnoidea (belemnites). Extant cephalopods range in

a former ancient people from the area of today's Jordan: Ammonites or Ammonoidea, a subclass Ammonitida, an order Ammonitina, a suborder and Ammonites

octopus, squid and cuttlefish). Unlike its sister groups, the shelled †Ammonoidea and Nautiloidea, the coleoids have at most an internal shell called cuttlebone

Acanthoceras is an extinct cephalopod genus belonging to the subclass Ammonoidea and family Acanthoceratidae that lived from the Albian to early Coniacian

simple goniatitic sutures. Treatise on Invertebrate Paleontology, Part L, Ammonoidea; Geological Society of America and University of Kansas, 1957, Database

classification Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Subclass: †Ammonoidea Order: †Ammonitida Suborder: †Ancyloceratina Wiedmann [de], 1966 Superfamilies

2017-10-19. W.J.Arkell, B.Kummel, & C.W.Wright 1957. Mesozoic Ammonoidea, Treatise on Invertebrate Paleontology, Part L Ammonoidea. R.C.Moore, (ed). v t e